How to use OAuth2.0's scope mechanism to limit access_token permissions to ensure the security of cross-company application integration?

OAuth 2.0: Fine access control to improve the security of cross-company application integration

When building cross-company application integration, for example, when Company A App embeds Company B H5 pages and needs to access Company A user information, it is crucial to ensure secure control of access rights. The access_token provided by OAuth 2.0 can theoretically access all interfaces, which poses a security risk. This article will explore how to use the scope mechanism of OAuth 2.0 to solve this problem and achieve refined permission control.

Challenge: Protect user privacy and restrict access_token permissions

Suppose that Company A App allows Company B H5 page to access some information such as the user's mobile phone number, name and ID number. To protect user privacy, access to this information must be explicitly authorized by the user. However, traditional OAuth 2.0 access_token may access all interfaces, which is contrary to security requirements.

Solution: Use the Scope mechanism to refine control permissions

The scope mechanism of OAuth 2.0 can effectively solve this problem. Company A can define multiple scopes, such as read:phone , read:name and read:id , respectively, corresponding to the permissions to access the mobile phone number, name and ID number.

When Company B’s H5 page requests user information, Company A will prompt the user to authorize these scopes. After the user chooses to agree, Company A issues an access_token containing the corresponding scope. The access_token is limited to accessing authorized interfaces only.

When the company A backend receives the request, it will verify the scope in access_token. If the request interface is not within the scope of authorization, the request is denied, thereby enabling access control.

User authorization and interface control: dual guarantee

It should be clear that the number of control interface accesses and user authorization are two independent but related aspects, and can be implemented through the scope mechanism:

• Number of interfaces control: By specifying scope in the OAuth 2.0 authorization process, Company A can control the number of interfaces that can be accessed on Company B's H5 page.
• User Authorization: The user can choose which scopes to agree to during the authorization process. Only the corresponding interface of scope agreed by the user can be accessed by the H5 page.

Summary: Safe and reliable permission management

By rationally using the scope mechanism of OAuth 2.0, Company A can effectively restrict the access rights of Company B's H5 pages to ensure the security of user data. At the same time, users have independent control over data access, which improves the level of user privacy protection. This is a safe and reliable permission management method, suitable for various cross-company application integration scenarios.

The above is the detailed content of How to use OAuth2.0's scope mechanism to limit access_token permissions to ensure the security of cross-company application integration?. For more information, please follow other related articles on the PHP Chinese website!